package com.mao.dao;

import com.mao.pojo.User;
import org.apache.ibatis.annotations.*;

import java.util.List;

/**
 * Author: Administrator
 * Date: 2021/5/15 15:55
 * Description: User接口
 */
public interface UserMapper {


    @Select("select * from user")
    List<User> getUserList();

    // @Param 方法存在多个参数，所有的参数前面必须加上 @Param注解
    @Select("select * from user where id = #{id}")
    User getUserById(@Param("id") int id);

    @Insert("insert into user(id,name,pwd) values(#{id},#{name},#{pwd})")
    int addUser(User user);

    @Update("update user set name = #{name},pwd = #{pwd} where id = #{id}")
    int updateUser(User user);

    @Delete("delete from user where id = #{id}")
    int deleteUser(@Param("id") int id);

}
